Home / 414,264.52-621,394.86-129,975.88

Finding the Fourth Proportional to 414,264.52, 621,394.86 and 129,975.88

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Solution

The fourth proportional to 414,264.52, 621,394.86 and 129,975.88 is: 194,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,264.52 : 621,394.86 = 129,975.88 : x
  2. Step 2: Convert to fraction form
    414,264.52/621,394.86 = 129,975.88/x
  3. Step 3: Cross multiply
    414,264.52x = 621,394.86 × 129,975.88
  4. Step 4: Simplify right side
    414,264.52x = 80,766,343,755.98
  5. Step 5: Solve for x
    x = 80,766,343,755.98/414,264.52
  6. Step 6: Final answer
    x = 194,963.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.